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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG815606188

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG815606188

Diamond specifications and retailer prices

From HK$2,079 HKD
As of November 4, 2026
Save HK$5,939 HKD (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$9,366 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG815606188 or 815606188. Listed at 15 retailers as of November 3, 2026, with a 286% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815606188
Dimensions7.38 × 5.23 × 3.64 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm5.23 mm1.21 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815606188
Side View
Table 66.0%Crown 41.8°Girdle: STK-THKPavilion 36.1°Culet: NoneDepth 69.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$9,366 HKD|Low: HK$2,079 HKD|High: HK$9,635 HKD|Avg: HK$5,678 HKD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 10HK$2,079 HKD
Retailer 8HK$2,158 HKD
Retailer 5HK$3,123 HKD
Retailer 14HK$3,994 HKD
Retailer 13HK$4,174 HKD
Retailer 2HK$4,315 HKD
Retailer 4HK$4,778 HKD
Retailer 12HK$5,649 HKD
Retailer 3HK$5,994 HKD
Retailer 9HK$7,446 HKD
Retailer 6HK$7,477 HKD
Retailer 11HK$7,822 HKD
Retailer 7HK$8,018 HKD
MOH LondonHK$9,366 HKD

24 data points across 14 retailers

15 retailersHK$2,079 HKD to HK$8,018 HKD

A
Cheapest Retailer
-
HK$2,079 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,158 HKD
View
A
Retailer 3
-
HK$3,123 HKD
View
A
Retailer 4
-
HK$3,994 HKD
View
A
Retailer 5
-
HK$4,174 HKD
View
A
Retailer 6
-
HK$4,315 HKD
View
A
Retailer 7
-
HK$4,778 HKD
View
B+
Retailer 8
-
HK$5,649 HKD
View
B+
Retailer 9
-
HK$5,994 HKD
View
B+
Retailer 10
-
HK$7,446 HKD
View
B+
Retailer 11
-
HK$7,477 HKD
View
B+
Retailer 12
-
HK$7,822 HKD
View
B+
Retailer 13
-
HK$8,018 HKD
View
Retailer 14
-
HK$9,305 HKD
View
Price last confirmed 30 days ago
Most Expensive
MOH London
LG815606188 · Oct 26
HK$9,366 HKD
£940 GBP
View
Price last confirmed 8 days ago
14 more retailers have this diamond
Prices start from HK$2,079 HKDSave up to HK$5,939 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.21ct Radiant
HK$2,079 HKD